Stamping hammer



W. TYMINSKI S TAMP I NG HAMMER Filed July 31, 1920 Ewe/1, r waiter @m w mil 719056 Patented Feb. 5, 192

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PATE- STAMPING HAMMER Application filed July 31, 1920. Serial No. 400,355.

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Be it known that I. \VALTER TYMINsKI, a citizen of the Republic of Poland, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Stamping Hammers, of which the following is a specification.

This invention relates to stamping hammers.

As is understood, in the making of steel billets practically all of the billets are stamped with the heat number, and, of course, when the heat number changes the number which is impressed upon the billets must be changed to keep the records correct. Heretofore the heat number has been stamped upon the steel billets by the use of a hammer, the head of which is provided with a walled opening closed on all sides with the exception of one, for the reception of the stamping die or dies having the numerals to be stamped upon the billets. These stamping dies heretofore have been held in place by a set screw. In actual practice, however,

it is found that the hammer becomes excessively hot and the set screw becomes loosened and does not effectively hold the stamping dies in place. Furthermore, a great deal of time is lost in changing the stamp numbers, or stamping dies bearing the numbers, as a result of the set screw arrangement. This sometimes leads to misstamping the billets, and, therefore, confusion in identifying the steel.

One object of my invention is to overcome the above mentioned disadvantages.

Another object is to provide a stamping hammer in which the stamping dies are held in the hammer head in a simple and approved manner adapted to meet all of the requirements for successful commercial use.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings, in

which Figure 1 is a side elevation of a stamping hammer embodying my invention;

Figure 2 is an end elevation of the same hammer; and,

Figure 3 is a plan view of the hammer.

The various novel features of my invention will be apparent from the following desoription and drawings and will be particularly pointed out in the appended claim.

Referring to the figures of the drawings, it will be noted that the stamping hammer includes a metal head 10 mounted upon one end of a handle 11, said head 10 having an open slot 12 in one face of the hammer for the reception ofthe stamping dies 13 bearing the numerals to be impressed upon billets and the like. These stamping dies preferably are in the form of elongated blocks which fit between three walls 14:, 15 and 16 of the slot and are backed by the bottom 17 of the slot. The fourth side of the slot in this case is one end of a lever 18 pivoted at 19 within the longitudinal slot in the hammer head forming a continuation of the die receiving slot 12. Interposed between one end 20 of the lever and a portion of the head 10, and preferably located within a pocket 21 in the head, is a coiled spring 22 for forcing the opposite end 23 of the lever 18 into engagement with one of the stamping dies for yieldably holding all of said stamping dies in the hammer head. It is readily apparent that a. change in temperature of the hammer head 10 will in no wise adversely affect the holding of the stamping dies 13 within the head, and at the same time the dies may be readily and rapidly changed by merely depressing the spring end of the lever, and as soon as other dies are placed within the slot the lever may be released, whereupon it will snap into engagement with one of the dies for yieldably holding all of same in operative position. It will be noted, among other things, that by means of thls spring-pressed lever arrangement the number of stamping dies to be mounted within the head may be varied and that the spring-pressed lever will effectively hold all of said dies in position regardless of the number within certain predetermined limits.

It is my intention to cover all modifications of the invention falling within the spirit and scope of the following claim.

I claim:

A stamping hammer having a heavy metal head, a handle fitted thereto, a transversely extending slot in a striking face of said head, said slot extending to a lateral face of the head and along said lateral face, a pivot member fitted in said head and extending through said lateral portion adjacent the handle, a lever fitted on said pivot, one end of said lever closing the open end of the slot on the striking face, and adapted to engage a stamping die fitted in said slot, the other end of the lever extending adjacent the head and a spring fitted in a recess in the head urging said end of the lever away from the head. 10

Signed at Duluth, Minnesota, this 21st day of July, 1920.

\VALTER TYMIN SKI. 

